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Microplate liquid handling system

Inactive Publication Date: 2007-01-30
HITACHI KOKI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0011]It is therefore an object of the present invention to provide a microplate liquid handling system requiring a minimum installation area, helping to avoid waste of various reagents, and capable of performing dispensing of various reagents in minimum time.

Problems solved by technology

That is, a large installation place is required.
Further, a critical error may occur in the test results due to attachment of the row of dispensing tips to an erroneous row of the nozzles.
This requires a large amount of sample or reagent, which is valuable in itself, resulting in a marked deterioration in test efficiency.
However, in a direction perpendicular thereto, dispensing has to be performed with a single dispensing tip attached to a certain one of the n or m nozzles, as in the case of the 96-gang type microplate liquid handling system, so that it takes long time to complete dispensing, resulting in a deterioration in test efficiency.

Method used

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first embodiment

[0023]A microplate liquid handling system according to the present invention will now be described with reference to FIGS. 1 through 5. A microplate liquid handling system 1 has a main body 10, which is equipped with a moving mechanism 20, a rotating mechanism 30, a dispensing mechanism 40, and a stage 50. The main body 10 has a substantially rectangular box-like outward configuration, and defines therein a substantially rectangular chamber 10a which is substantially geometrically similar to the outward configuration of the main body 10. Partially formed in an upper surface 10A and a front surface 10B of the main body 10 are openings 10b and 10c outwardly open from within the chamber 10a. The openings 10b and 10c have rectangular configurations which are respectively substantially geometrically similar to those of the upper surface 10A and the front surface 10B. The stage 50 is provided on an inner peripheral surface defining the chamber 10a, on a bottom surface 10C of the main body...

second embodiment

[0071]Further, in the second embodiment the abutment member 12 is provided on the inner peripheral surface defining the chamber 10a inside the main body 10 and extending in parallel to the X-axis member 21A. However, the abutment member can be provided on another inner peripheral surface extending in parallel to the Y-axis member 22.

[0072]Further, in order to provide constant pressure between the pulley 48 and the abutment member 12, as shown in FIG. 7, a support stand 13 can extend from the main body 10, and the abutment member 12 is supported on the support stand 13. Further, a spring 14 is interposed between the abutment member 12 and the inner peripheral surface of the main body 10, for urging the abutment member 12 toward the pulley 48.

[0073]Further, in order to prevent the pulley 48 from slipping with respect to the abutment member 15 during rotation of the dispensing mechanism 40, as shown in FIG. 7, a resilient member 15 formed of a rubber or the like can be laid on the enti...

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Abstract

A microplate liquid handling system requiring minimum installation area, helping to avoid waste of various reagents, and making it possible to perform dispensing the various reagents in the shortest possible time. The microplate liquid handling system has a main frame body provided with a moving mechanism, a dispensing mechanism, and a stage. On the stage, a microplate, two dispensing tip containers, and two reagent vessels are mounted. Formed in the microplate are 12×8 wells, i.e., 96 wells in total, arranged in matrix. The microplate, the dispensing tip containers, and the reagent vessels are substantially of the same, rectangular configuration. Each of the two dispensing tip containers is capable of accommodating 12×8 dispensing tips in total in a matrix fashion.

Description

BACKGROUND OF THE INVENTION[0001]1. Field of the Invention[0002]The present invention relates to a microplate liquid handling system and, more particularly, to a microplate liquid handling system for simultaneously delivering liquid reagent, liquid specimen, etc. to a plurality of desired wells for specimen / reagent reaction arranged in a microplate in n×m matrix.[0003]2. Description of the Related Art[0004]A microplate liquid handling system has conventionally been known which is used to deliver reagent, specimen, etc. to desired ones of a plurality of wells formed in a microplate. The microplate liquid handling system has a dispensing mechanism and a moving mechanism, and the dispensing mechanism is equipped with a cylinder having a nozzle. Mounted to the nozzle is a dispensing tip, through which liquid can be sucked and discharged. The cylinder is equipped with a plunger for sucking liquid into the dispensing tip mounted to the nozzle and for discharging liquid from the interior o...

Claims

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Application Information

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IPC IPC(8): B01L3/02G01N35/02G01N35/00G01N35/10G01N37/00
CPCG01N35/1067G01N35/1072G01N2035/103G01N35/109G01N35/1074
Inventor TOI, HIROATSUYAMADA, KENJIOHKAWARA, TADASHINAGAOKA, MASASHI
Owner HITACHI KOKI CO LTD
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